arangosh> db.example.insert({"a" : { "one" : 1, "two" : 2, "three" : 3 },
........> "b" : { }});
{
"_id" : "example/329993800",
"_rev" : "329993800",
"_key" : "329993800"
}
arangosh> db.example.update("example/20774803", {"a" : { "four" : 4 },
........> "b" : { "b1" : 1 }});
{
"_id" : "example/20774803",
"_rev" : "330518088",
"_key" : "20774803"
}
arangosh> db.example.document("example/20774803");
{
"a" : {
"four" : 4
},
"b" : {
"b1" : 1
},
"_id" : "example/20774803",
"_key" : "20774803",
"_rev" : "330518088"
}
arangosh> db.example.update("example/20774803", { "a" : { "one" : null },
........> "b" : null },
........> false, false);
{
"_id" : "example/20774803",
"_rev" : "330845768",
"_key" : "20774803"
}
arangosh> db.example.document("example/20774803");
{
"a" : {
"four" : 4
},
"_id" : "example/20774803",
"_key" : "20774803",
"_rev" : "330845768"
}